A High-Performance Electrochemical Sensor based on FeTiO_3 Synthesis Coated on Conductive Substrates

Conductor substrate-coating ilmenite (fetio_3) electrodes developed for electrochemical sensors was investigated to high the photocurrent response, which influenced by transfer of electrons for photoelectrocatalytic processes. a highly ordered electrochemical process to obtain the electron response was employed as modeling reduction-oxidation (redox) reactions on working electrodes. this study utilized conductor substrates, i.e., indium tin oxide (ito), titanium (ti) plate, and tio_3/ti then coated with fetio_3 sol-gel. the results investigated the resistivity determined in ito, ti plate, tio_3/ti, fetio_3/ito, fetio_3/ti, and fetio_3.tio_3/ti electrodes were 21.30 ω, 0.37 ω, 5.17 ω, 117.04 ω, 31.07 ω, and 51.24 ω, respectively. the ti plate was a better conductor substrate than ito was indicated by the highest performance with linear sweep voltammetry (lsv) and cyclic voltammetry (cv) methods. the fetio_3.tio_3/ti electrode performance had the highest activity compared with tio_3/ti electrode as shown by photocurrent values of 1200 µa and 600 µa, respectively. this phenomenon indicates the photocurrent response of fetio_3.tio_3/ti possesses voltammogram stability for modeling the redox reactions. more importantly, this study to approach of chemical oxygen demand (cod) determination using fetio₃ synthesized as modeling natural fetio_3 extracted from mineral sands.